[Telepathy] empathy-2.32.2 refuses to call through SIP

[Yuri]

I am on FreeBSD-8.2. I have installed sofia-sip and telepathy-sofiasip.

empathy is able to connect with my SIP account and has status 'Available'.
However, when I am trying to place a call (Chat->New Call) SIP account 
in combobox is grayed out.

What might be the reason of this?
Maybe there are some prerequisites that are not met? Maybe some 
dependencies have to have some compile flags?

Thank you,
Yuri